كتاب: الكنى لمن لا يعرف له اسم للأزدي
المؤلف: أبو الفتح الأزدي

«So when Saul set out with the forces, he said: surely Allah will try you with a river. Whoever drinks from it, he is not of me, and whoever tastes it not, he is surely of me, except he who takes a handful with his hand. But they drank of it save a few of them. So when he had crossed it, he and those who believed with him, they said: We have to-day no power against Goliath and his forces. Those who were sure that they would meet their Lord said: How often has a small party vanquished a numerous host by Allah's permission! And Allah is with the steadfast.»